Observation of different isoscaling behavior between emitted fragments and residues

摘要

The traditional isoscaling technique has been used to analyze all isotopically identified particles from Zn-70+Zn-70 and Zn-64+Zn-64 collisions at 35 MeV/u. Two additional techniques, using an energy-averaged ratio and using the data present in the tail of energy spectra, are compared to the traditional method and show similar results. Isoscaling fit parameters alpha and beta are found both globally and for each individual series of constant Z and N. The data are then split up between emitted fragments and projectile-like fragments. Isoscaling values for the two different types of fragments are shown to be different, emphasizing the importance of experimentally distinguishing between projectile-like fragments and emitted fragments in order to achieve accurate isoscaling parameters. (C) 2017 Published by Elsevier B.V.